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SSI manufactures complete piping systems for fixed grid and retrievable aeration systems in the US, Canada and China directly, and through a network of authorized agents and distributors in most countries.
D'une manière générale, nous utilisons du PVC standard aussi bien pour les canalisations que pour les accessoires, comme le uPVC Sch 40 ou SDR 26 au USA, et nous standardisons nos réseaux en diamètre 4" pour la plupart de nos projets aux USA. Des réseaux en CPVC et PP peuvent aussi être envisagés, à des couts dépendant de la disponiblité locale des différents matériaux.
Stainless Steel Piping
Stainless steel pipework is acid passivated before shipment. MIG or TIG Welding is done by CWB (Canadian Welding Bureau) certified welders. Pipe thickness varies but typical specs call out Sch. 5 or Sch 10.
Support stands are available in stainless steel with drop-in wedge type anchors, or in ABS plastic with drop-in wedge type anchors. All North American installations use stainless steel support stands unless otherwise specified.
Expansion Joints
Expansion Joints are available
in a positive locking design or in flexible PVC
with a stainless steel shell. 
SSI recommends the flexible expansion joints for disc installations and the positive locking type for tube diffuser projects.
